US4023874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen mask stowage
Assignee: McDonnell Douglas Corp
•
Filing: 1976-02-23
•
Granted: 1977-05-17
•
Expires: 1996-02-23
Abstract
Abstract An automatically releasable restraining device for use in an oxygen system storage compartment to hold an oxygen mask, breather bag and associated tubing. The device facilitates inspection, closing of the compartment door, and proper release and positioning of the oxygen system equipment for use.
Inventors
- 👤 Howard W. Jong
- 👤 Maurice F. McDonell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:54
CPC Classifications
B; B64; B64D; B64D11/00; B64D2231/00; B64D2231/02; B64D2231/025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
70 words
An oxygen system restraining device for use in an oxygen storage equipment compartment with a rotating door comprising: a cannister attached to said compartment, said cannister open at the bottom; releasable bridging means to span the open bottom of said cannister; a latch to hold said bridging means in position spanning the open bottom of said cannister; actuator means responsive to closing of said compartment door to release said latch.
Claim 2
Dependent Claim
70 words
An oxygen system restraining device for use in an oxygen storage equipment compartment with a rotating door comprising: a cannister attached to said compartment, said cannister open at the bottom; releasable bridging means to span the open bottom of said cannister; a latch to hold said bridging means in position spanning the open bottom of said cannister; actuator means responsive to closing of said compartment door to release said latch.
Claim 3
Dependent Claim
23 words
The restraining device of claim 1 wherein the actuator means is a pin which engages said door on closing and opens said latch.
Claim 4
Dependent Claim
22 words
The restraining device of claim 2 wherein said pin is attached to said latch and rotates said latch to the release position.
Claim 5
Dependent Claim
104 words
An oxygen system restraining device for use in an oxygen storage equipment compartment with a rotating door comprising: a cylindrical cannister attached to the top of said compartment, said cannister being open on the bottom; a vertically rotatable bar mounted on bottom edge of said cannister to bridge the open bottom of said cannister; a rotatable latch attached to the opposite edge of the cannister as said bar, to hold said bar and restrain it in position to bridge said open bottom of said cannister; and an actuator pin attached to said latch to engage the compartment door on closing to open said latch.
Claim 6
Dependent Claim
104 words
An oxygen system restraining device for use in an oxygen storage equipment compartment with a rotating door comprising: a cylindrical cannister attached to the top of said compartment, said cannister being open on the bottom; a vertically rotatable bar mounted on bottom edge of said cannister to bridge the open bottom of said cannister; a rotatable latch attached to the opposite edge of the cannister as said bar, to hold said bar and restrain it in position to bridge said open bottom of said cannister; and an actuator pin attached to said latch to engage the compartment door on closing to open said latch.
References Cited (Backward Citations)
US2606052A
Cited
US3073301A
Cited
US3321226A
Cited
US3330506A
Cited
US3536070A
Cited
US3752324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |